Windows 10: OS migration failed, part of disk partition is in RAW file system and the other part is...

Hello,During OS migration using DiskGenius free software from 2TB SSD to 4TB SSD I had an error. I stopped migration and now part of disk partition is in RAW file system and the other part is Unallocated.This is very important data for me I don't want to lose any of it. Is there any chance to recover disk to state before migration?

:)

 

Lost EFI/ESP Partition | No Room Preceding OS Part | Options?

• Lost EFI/ESP Partition.
• After deleting MSR, on 17Mb is available (tutorial on woshub to re-add ESP + MSR, then copy *.efi files from %windir%)
• Diskpart shrink QUERYMAX tells me that I have 4gb, but wont let me free up (tried 228 [100efi + 128msr as well trying 116 after finding out win10 msr only 16mb).

1. Can I migrate / defreg files to back of disk, opening up more room b4 os part?
2. what about single partition windows installs, where x looks in windir for boot information? where x is ? EFI? BCD? i'm not sure, i got the impression that if no ESP part, windows looks in the %windir%

thanks =)

 

My CDROM is suddenly showing as RAW

Hi All,

I don't know how or why but Windows 10-Pro stopped recognizing anything I put into my CD Drive even though it was shown in Disk Mgmt as healthy.

I found out that a RAW Disk can't be recognized by Windows, so I tried multiple suggestions I read about and kept getting something to the effect of "Windows can't do anything with a protected drive". In Disk Management it lists Disks 0 - 9 and then CD-ROM
0, In Disk Part it lists Disks 0-9 also but no CD. When I list Volumes in Disk Part it lists 0-14, with 0 being DVD-ROM with RAW file system.

How can I reformat the CD drive when Windows tells be it can not access the disk?

 

Raw Partitions

Hi Everyone!

A few days ago, I accidentally told the Ubuntu Installer to wipe my Windows 10 partition. I quit the installer, but my partition is now RAW.

What is a RAW Partition?

In Windows, partitions with an unknown filesystem (like my Ubuntu partition) are marked as RAW. In this case, Windows was unable to recognize the filesystem type. Lets say your Windows partition filesystem gets corrupted badly. Windows would mark
it as RAW. So, in short, a RAW partition is
not a filesystem, but an error of the partition.

What happens if you have a RAW partition?

It depends. If your primary partition is RAW, Windows will not boot. Period. If an external storage device or other partition is RAW, Windows will ask you to format it. You will not be able to get any data off of this partition.

Is this error fixable?

It seems like it also depends. If your partition's filesystem got really messed up, then no. This will happen:

> The type of this file system is RAW.

> CHKDSK is not available for RAW drives.

However, I have seen reports of people fixing a RAW partition. This is what happened:

> The type of this file system is NTFS

> The first NTFS boot sector is unreadable or corrupt.

A little suprising, but this is good. It means that your partition is fixable. The first sector is what caused the RAW error.
p.s. I used chkdsk to get these errors

How do you fix this error.

First off, you will probably need a Windows Installer device.

If you can get to a command line, skip this part.

Boot from the installer.

Set your keyboard, mouse, etc. Click next.

Click Repair your Computer (bottom-left corner)

Click Advanced Options (or similar)

Now, first, try and use Startup Repair. If Startup Repair works, great! If Startup Repair fails, keep reading.

Open a command line.

Run the following commands in order:

> diskpart

> list volume

This will show you the RAW partition, and what letter it is.

> exit

> chkdsk /r /f D:

Replace D: with the letter from Diskpart.

You should get some errors at the beginning (first sector corrupt). Don't worry, it is actually fixing the second sector!

If that doesn't work, then you are in trouble, and should just reinstall Windows. Sorry

I hope this tutorial was useful. And also, please leave comments if you have another method that worked for you. Thank you!